Ok crash Ive seen your website but it said that the 4.2 kit was a race piece. I was looking for somthing a little less radical to add some streetable power for pulling my race car(92 Ford Mustang), and still be able to maintain drivability and reasonable mileage. Do you work with powerdyne or any other oiless kits 6 to 9 psi? Your help is appreciated.